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w. s, PANCOAST AND w. 1. GROTENHUIS. ATTACHING BRACKET.

APPLICATION FILED NOV. 1, I920- mm May 31;1921.

fwa mars, wadzla n GIG/wow and Wilda/7L1 Grote m W. G. PANCOAST AND W. .l. GROTENHUIS.

ATTACHING BRACKET.

APPLICATION HLEU NOV-1.1920.

Patented May 31, 1921.

2 SHEETS-SHEET 2.

sf?" r and JG/ate v fumrjeu s'rArl-z's WILLIAM G. rimco'asr Aim wxnnmu J. enornmiersor cmcseo, innnfoxs,

PATENT "OFF-ICE.

ABSIGNORB T BIFLEX PRODUCTS COMPANY OF WAUKEGAN. ILLINOIS, A CORPO- xenon or rumors.

TEACHING-BRACKET;

' Specification of Letters Patent.

Patented May31, 1921.

A lication flled November 1, 920. Serial No. 421,1 7.

Taallwhoinitmay concern: I

Be it known that'we, WILLIAM G. PAN- 00431 and Wrnmu J. Gnorennms, both.

citizens of the United States, and residents 6..0i'Chicago in the county of Cook and State of Illinois, have invented certain new and useful Im rovements in Attaching-Brackets, of which he following'isa. specificat1on. J This invention relates to improvements in "automobile bumpers and more particularly to devices for fastenin bumpers to the r frame of the vehicle an ,ordlnarlly ternied attaching brackets.

In thedesigning of attaching brackets it is desirable that they shall be capable o attachment to various dimensions of frame membersl, that is to say, so'designed as, to

be readi motor ve "cles, andgto thus avoid the necessity ofprovidmg specially shaped brackets to-fit each make or several makes of vehicles. The object of the present invention 15 Fig. an enlarged detail view in side elevation sis-me attachingbracket' mounted 4 tothe frame member .Fi 3'is-aperspect1ve view of a complete bra t removed,

; Fig. 4'is adetail'view insectmn; taken on line 4, 4 of Fig. 2, and V Fig. 5 is a perspective view of the attaching link.

The attaching bracket embodying the features of the invention is adapted for attaching such a bumper as 'shown in Fig. 1 5 to the longitudinal frame members 1, 1 of a'vehicle frame, the bum r 2 being preferably of the flexible orresrlient'type and consisting of a forward impact section 3, the

adaptable to difierent makes of' 7 therefore to rovidea bracket so designed;

in the a ccompanying drawings, in whichextremities of the impact section being bent in U-shape to form the end sections 4, 4. As

a preferred constructiom the impact end sections.- are made from a continuous bar bent in the desired shape. the ends of the her being extended inwardly from the end sections and connected together vin abutting relationby means of portions adjacent the wardly disposed bar the impact section 3 a suitable clamp 55, the clamp forming a rear- 5 extendingparallel -to manner hereinafter to be described.

Refer ring now to a single attaching bracket, the same com )rises two companion plates 7 and 8 adapter to engmgc and to be clamped on opposite sides of .the culurgements or heads 1', 1 formed at the forward extremities of the frame members 1. 1, the primary means of attachment lieing the pivot bolt 9 which extends thmugh the head 1" and pivotally connects the forward spring 10 to the frame member 1.

The fplate 7 preferably engages the outer side 0 the frame member 1 and is constructed in the following manner: By means of a stamping )rocess a blank bf sheet metal is stamped on ormed into a body portion 11 adapted. to lieflatwise against the side of the frame head 1 and provided near. its. lower edge with n bolt hole 12 preferably surrounded by a wuntersunk depression 12'. The forward portion of the body 11 is designed to project beyond the frame head 1' and is provided at its forwnrd edge with a.

and having direct con- IIBCtlOIl with the attachment brackets in the vertically disposed and transversely extend ing flange 13, said flange having a cut-away portion 13' at its lowermost corner. Extendmg inwardly from the inner vertical edge of the flange 13 is also provided a slot 14; terminating a short distance from the body 11 and adapted to serve a purpose hereinafter more fully described. The rear portion of the body is extended in the form of an arm 15 somewhat narrower than the body itself and located slightly above the bolt hole 12. The arm 15 is preferably ofiset inwardly from the body portion inorder that the same may be brought in closer proximity to the face of the frame member innsmuc as the same is somewhat less in width than the lead 1 Arran d lengthwise of the arm-15 is a series of oles 16 adapted to be used in attaching the arm '15 to the frame member in the manner about tobc described.

As clearly shown in Fig. 2, the frame member 1 has a s ries of rivets 17, 17 located adjacent to the upper edge thereof and throughout the forward portion. The presence of rivets is commonly found in motor vehicle construction. these rivets being used for the purpose of securing the edges of the splash pan to the frame members. In order to avoid the necessity of drilling'additional holes in the frame members. and hencethc possibility of weakening the same. it is proposed to make use of the rivets. or rather the rivet holes. in attaching the rear end of the plate 7 to the frame. To accomplish this pur 7089, a link.18 is secured at its lower end to t 1e. arm 15 through themedium of one of the holes 16. and a bolt 19. said link extending vertically in an upward direction and at right angles to the'arm 15 o the plate 7.

Inasmuch as the location of the rivcts IT is. not uniform m all makes of vehicles. one of the rivets 17 is selected. preferably one that is in vertical alinement with one of the holes 16 in the arm 15. llaving selected the desired rivetithe same is rem'oved and a bolt 20 is passed through the rivet hole and the upper end of the link 18 fastened to the,

frame member thereby.

In attaching the plate 7 to the vehicle frame the same would obviously be first mounted on the pivot bolt 9 and rotatablv adjusted so that the forward edge or face of the flange 13 lies in a vertical plane. Having made this primary adjustment. the desired rivet hole would be selected as well as the desired hole 16 in. the warwardly extending arm I? of the plate 7. The link 1H would then be attached at its ends to the frame member I. and arm I?) and the several connecting members made tight. lower end of the link ltt-may he dril!cd after the parts have been adjusted and the exact location of the said hole accurately determined in thismanuer. The plate 7 is'clam pcd in position by means of a uut9 carried at the end of the pivot bolt, the same being rcmoved to permit the plate to he placed on the pivot bolt. The drawings disclose a lug 2! which is struck up from the edge of the plate. 7 adjacent the bolt hole. said lug carry- 'ing a set screw 22 adapted to engage the nut 9 andto hold the. same from rotation.

. The companion plate 8 is similar in conformation to the plate 7 just described except that it is not provided with a rearwardly extending arm; but terminates immediately behind a bolt hole 22 corresponding to the bolt hole 12 of the plate 7. Theplate 8 is provided with a forward flange 23 corresponding to the flange 13 of the plate 7, said flanges 13 and 23 extending toward each other and occupying the same vertical If desired, the hole at tlic relation. although the'distance between the end surfaces may be varied. depending on the length of the frame head to which a particular bracket is attached. Whereas the flange 13 of plate 7 is provided with the slot H. the flange 23 has a tongue 24 adapted to engage the slot H in the mounted position-of the bracket. The tougueQtserves to close the vertical space sepz'irating the end surfaces of the flanges 13 and 23, the purpose of providing such a closure being hereinafter set forth more ii -detail. Manifestly. the plate 8 is secured to the vehicle frame in the same manner as the plate 7.

As a preferred means for connecting-the bumper to the attaching bracket. :1 pair of U-shapcd clamping plates 25. 25 are used, each of these dates having the form shown in Fig. 2. and adapted to be passed downwardly over the flanges; 13 and 23 of the attaching plates and the rearwardly disposed bars (3 of the bumper. "To secure the clamping plate 25 in place. the bolt 26 extends through the end portions of each clamping plate 25 below the bar (3 of the bumper and substantially in vertical alinemeut with the space separating the'end surfaces of the flanges 13 and 23. It may be pointed out at this time that the cut out portions 13' and a similar cut out portion 23 of the flanges 13 and 23 are formed therein for the purpose of providing a space to receive the bolt I 26. The function of the interfitting notch and tongue of the flanges l3 and 23 may now be pointed out. bolt 26 becomes loose by reason of vibration in the. bumper. it would be entirely possible for the clamping plate 25 to ride upwardly and become completely detached from the attaching bracket and bumper, in the event that the space separating the end surfaces of the flanges '13 and 23 was wide enoughio permit the bolt 26, to move freely within the space. The presence of the tongue 14, however, provides a barrier across the space and eventhough the bolt should become loosened, the clamping plate 25 would not become completely detached and would continue to form a connection between the bumper and the bracket even though such connection were In the event that the .Jmted a preferred --ti'on, it is to be erstood that the details of construction-ma and hence may properly serve as connecting lgieians by the replacement of the rivet by a r o t. 4

V Although we have described and illusdiment of the invenbe variously modified without departing m the s irit offthe in-; viintion or as more specifical y pointed out in the appended claims.

W e claim as our invention:

1. An attachment bracket for bumpers comprisin a plate adapted to be clamped to a vehic e frame member and havin an arm adapted" to ,extend rearwardly dong said frpme member, and a series of longitudinal y spaced holes in said arm, and a link adapted for connection with one of said holes and with'said frame member.

I 2. An attachment bracket for bumpers com risin a plate adapted to be clamped to t e si e of a vehicle frame member by means of the spring pivot bolt thereof, said platehaving a rearwardly extendin arm and a series of longitudinally space holes therein and a link adapted to be connected at one end to a hole in said frame member and at its other end to one of said holes in said arm and substantially in vertical alinement with said hole in-the frame member. -3. An attachment bracket for bumpeis com rising a plate fadapted to be clamped .to t e side of a vehicle frame member,said

integral arm adapted to extend rearwardly along said frame member, and a. series of lbngitudinallyspaced holes in saidarm, and a link extending transversely to the arm of said plate and adapted with one of said holes and said framemember normally serving to re: oeive a rivet.

5. An attachment bracket for bumpers com rising a plate adapted to be clamped to t e side of a vehicle frame member by means of'the spring pivot bolt thereof, said plate having a rearwardly extendi arm and a series of longitudinally space holes therein and a link adapted to be connected to said plate. by means of one of said holes in said arm and wilth a hole of the frame member in vertica alinement therewith, said hole in the frame member being one of seyeral serving to retain a rivet.

6. An attachment bracket for bumpers,

comprising a pair of companion )lates adapted to be clamped on opposite si es of for connection 50 with a Hole ina vehicle frame member, said plates having l transverse flanges at their front ends extendingtoward each other and provided with an interlocking notch and tongue at their adjacent edges.

' 7. An attachment bracket for bumpers, comprising a pairvof companion Jlates adapted to be clamped on opposite sides of a'vehicle frame member. means for securing the bracket in clamped position, said plates having transverse flanges nttheii: forward ends and extending toward each other, a clamp for fastening a bumper flatwise against said flanges, there being formed an interlocking notch and tongue at the opposed edges of said flanges serving to close the vertical space between said edges.

In witness whereof, we hereunto subscribeour names this 29th day of October,

WILLIAM G.' PANCQASI.

WILLIAM J. GROTENHUIS.

l l l l l 

